Piston for gas-engines.



Patentai Get. 2?, 1.91%.

P, DANIEL.

PISTON FOR GAS ENGINES. v APPLICATION TILED JAN. 29, 1913.

wilimeooeo 20 is'pi roieifley dGSll'Gili, ilie bocizinglQ may lie made lighten by cutting one so, ,inizesvols, as shown M 22. 7 The piston herein described and cloimal ,may be meal in various forms of engine, and eiilie wiihfsliiiionory or revolving work and various changes may be i 9 same without departing from f my invention, 1 do not limit wlie details liei'ein shown onci do" l Vin Ii claim is- "'1, in. an internal combustion engine, a trunk pisigoo'liaving a. compound head comprising on inner plzg' ie of heat resisting motenal, and an arched, oeinforsing bridge of superior strength scoured within the trunk piston behind said plate, substantially as described.

2. in an internal combustion engine, a trunk piston comprising the usual cylindrical portion and having a compound head comprising an inner plate of heat resisting material, and on arched steel reinforcing bridge behind said gilaie seem-so at its pe l'lpllfily to the cylindrical portion of. the piston, substantially as described.

3. in an internal combustion engine, o trunk piston having the usual cylindrical portion and provided with o compound lie-ad comprising an inner ploite of "the some mo,- tcrial as the cylindricol portion, and an arched reinforcing steel loi'ioge behind said plate, secured at its periphery to sai i-cy lindrical portion, subsmntially as described. 4:. in an. internal combustion engine, a trunk piston comprising the usual cylindrical port-ion and. having a compound heed, having a, thin inner "ploic, and on arched reinforcing dricol portion and making contact with said inner platenear its centex', substantially as described.

means the pintlo 21. Ill

' piston hovin bridge screwed into the cylinmusics 5. In on iniemoi combustion cc, "o piston having a compound head comprisin on innerplate, ani on ettachei cylincli'ica ortion,

informing loi'irlge connecteoi at iis Wliilii said cylindrical portion an ripliery making confines with said inner ,plate near its center,

substensisily es (lescribei 6. In an imernol combustion engine, o. P159011 comprising. on inner pistev liovin o, cyli'miiicel portion, sci'ewecl into saii cylindrical portion smell connectei to said inner ploize by s control screw bolt, substantially as described. 7. in on. internal combustion engine e, on internal pleie PI'GVlBEl with a, cylini'ical portion, and a reinioi'ciog bridge screwed into said cylindrical peeizion and connected to said inner piece near the center thereof by the screw bolt, soii in combination with on wheel re- BJICi-Ei reinforcing ln'i i e v screw bolt and the screw'connection of seifi bridge with the cylindrical ortion of ihe piston having threads cut rig t one-left re spectively, substantially as describes.

8. in on internal combusiion engine a trunk piston comprising the usual w in dricsl portion anti having on inner late of; cast iron to receive the pressure 0 explosion, in combination with on srcliecl steel bridge making contact with the, exterior side of said plate, to reinforce ii, soici bridge being suitably secured both to said cylim drical ortion of the pision end to said. inner p ate, substantially as described.

In testimony whereof, I sfix my signeture, in presence of two Witnesses, I

PAUL Den se;

Witnesses:

KATIECAIHNE Q. H. S. MMKAB E. 

